Extension device for bracelets



Patented Sept. 6, 1927.

UNITED STATES PAT/ENT OFFICE.

LEWIS B. CHILSON, OF ATTLEBOBO, MASSACHUSETTS; ASBIGNOR TO J'. M. FISHERCOMI- PANY, OF ATTLEBORO, MASSACHUSETTS, A CORPORATION 0F RHODE ISLAND.

EXTENSION DEVICE FOR BRACELETS.

application mea August a, 192e. smal No. 126,817.

This invention relates to an extension device for bracelets moreparticularly watch bracelets for holding a wrist Watch to the arm of thewearer; and the object of this invention is to provide a plurality ofsections hinged together to be folded one upon the other to make thebracelet of a size to snugly fit the wrist of the wearer and which maybe unfolded to extend the length of the bracelet to permit it to bewithdrawn from the arm of the wearer without detachment ofy any of theparts. I

A further object of this invent1on 1s to rovide a means to adjust theeffective workmg length of the bracelet when on the arm of the wearer.

' A still further object is to provide a pm extending throughthe sidewalls of the deviceto be manually engaged and moved to initially open orunfold one of the sections relative to another.

With these and other objects in view, the invention consistsk of certainnovel features of construction, as will be more fully described, andparticularly pointed out 1n the appended claims.

In the accompanying drawings: I

Figure 1 is a side elevation illustrating the im roved device in itsrelation to a wrist watch racelet.

Figures 2, 3 and 4 are perspective views of the different sections ofthe device.

Figure 5 is a central sectional elevation of the device in closedposition.

Fi ure 6 is a central sectional plan view of t e device looking from thebottom thereof.

Figure 7 is a sectional elevation taken on line 7-7 of` Figure 6.

Figure 8 is a central sectional, elevation of the device in extendedposition.

Figure 9 is a plan view of the device ywith the sections extendedasshown in Figure 7.

Figure 10 is a perspective view showing r the device with the sectionspartially folded.

, It is found desirable in bracelet construction especially watchbracelets to provide a device interposed between the ends of the watchbracelet by which the effective working length of the bracelet forholding the watch snugly on the wrist may be extended to permit thebracelet to be passed overthe hand of the wearer without detaching anyof the parts from each other or from the watch. It 1s also founddesirable to provide means in the extension members by which theeffective working length of the bracelet may be adjusted -when on thearm ofthe wearer to sn'ugl fit different sized arms and the following isa detailed description of the present embodiment of my invention andshowing one construction of extension member by which these advantageousresults may be accomplished:

With reference to the drawings, l0 designates a. wrist Watch and 11, 12parts of the watch bracelet for holding the watch onto the arm of thewearer. These parts are each provided at one end with hooks 13 forengaging the bails 14 of a wrist watch' and interposed between theiropposite ends 15 and 16 there is an extension device 17 whlch 1scomposed of a plurality of sections 18,19 and 2O hinged together andfoldable one upon the other.

The bottom section 18 is provided with a bottom wall 21 and side Walls22 which are longitudinally slotted as at 23 and slidable in this slotis a pin 24 to which the end 15 of the bracelets part 11 is attached.

The intermediate section 19'is hinged to the end section 18 by means ofopenings 24, 25 and pins 26, as illustrated in Figure 9.

The side walls of the section 27 are spaced apart by cross bars 28a, asuiiicient distance to be folded and fit within the side walls of thesection 18. f

A series of notches 28 are provided in each* `The pin 24 is provided'with heads 29 which may be manually engaged to slide the pin towards thehinge yconnection 24-25 which serves to swing the section 19 upon itspivots 26 in initia ly opening the extension device.

The top section 20 is hingedA to the in-.

termediate section 19 by means of openings 30, 31 and pivots 32 andcomprises a top wall 33 iwith side walls or Hanges 34 which are of asuiicient distance apart to engage the outer side of the walls 22 of thebottom section when the sections are in folded relation. o

Ears are provided at the free end of the top section 20, which ears have.openings 36 for receiving means lfor attaching the end 16 of thebracelet part 12 thereto. These ears are so 'ositioned relative to theend. cross bar 28a o the intermediate section that they snap over andfrictionaly engage this cross bar, as illustrated 1n Flgure 5, toreleasably retain the top section 1n folded closed position.

It will thus be seen that I have provided an eXtendible device which maybe folded upon itself to it snugly about the wrist and retain a wristwatch in the desired posltion and yet one which may be unfolded topermit the watch to be withdrawn over the hand without detaching any ofthe parts, the initial movement of extension being by means of knobs orheads on the pii1 24 to be slid longitudinally of the device.

It will also be seen that I have provided a means by which the effectiveworking lengthl of the bracelet4 may be adjusted when on the wrist ofthe wearer by simply moving the adjusting pin by means of the knobs orheads v at its ends.

-Th'eforegoing description is directed. solely towards the constructionillustrated, -but I desire it to be understood that I reserve theprivilege of resorting to all theV mechanical changes to which thedeviceis susceptible, the invention being defined and limited only by theterms of the appended claims.

I claim; 1. A wrist watch bracelet having two strap parts, two sectionshinged together and having means connecting theirA ends to the ends ofsaid strap parts, one of said 'sections having side walls,. spaced'crossbars connecting said walls, and means on the other b of said sectionsfor snapping over and fridtionally engaging one of said cross bars forholding said sections in folded-over closed position.

2. An -extendible member for a bracelet,

including sections having side walls hinged' together, formations in theside walls of said sections, a pin engaging said formations andextending outwardly through the side walls of said sections to bemanually engaged, said pin andv formations co-operating to cause saidsections to initially swing apart in moving the device to extendedposition upon movement of said pin relative to said formations.

3. An extendibledevice for a bracelet or the like including connectedsections, one of said sections having side walls with slots therein, apin sliolablel in said slots, and adapted to be connected to a bracelet,another of said sections hinged to said slotted section and having sidewalls with spaced notches to engage said pin in various differentpositions of adjustment.

l 4. An extendible device" for a bracelet or the ylike inclu-dingasection having side Wallsv with slots thereinja pin slidable in saidslots, and adapted to be connected to a bracelet, a section hinged tosaid first section and having inclined notches in its side Walls toreceive said pin to secure said sections together when in closed workingposition said pin being slidable in said slot and notches to cause saidsections to initially swing apart in moving the device to extendedposition.

5'. In a wrist watch attachment having two strap parts, an eXtendibledevice comprising end sections, means for securing one of said strapparts to one end sect-ion, an intermediate section hingedly connected atits opposite ends to said end sections whereby said sections may befolded one upon the other, means for securing the other strap| part tothe other end section and formations on one of the said end sections andsaid intermediate section cooperating with said strap securing means foradjusting and securing the eliective fol-ded or working length of one ofsaid strap parts, and frictional means between the intermediate sectionand one of said other sections for securing them in closed position. v

A6. A wrist watch bracelet having two parts, an extendible devicecomprising an end section having a bottom wall with slotted side walls,a pin having one of the bracelet parts connected thereto and slidable inthe slots of'said side walls, anend section having a top wall and sideWalls to slidaly engage said slotted side wallsl and having the otherbracelet part connected thereto, an intermediate section hinged at itsopposite ends to said end sections and having side walls with spacedinclined notches and cross bars connecting said walls, said notchesbeing engageable with said pin in different positions of said pin alongsaid slots whereby to adjust the working length of the bracelet andsecure the intermediate section in folded position, andl frictional-LEWIS S. CHILSON.

